hej! Any good way to make a set from List<T> by checking only one property? smth like ``` val ...

# announcements

[kitttn]

hej!
Any good way to make a set from List<T> by checking only one property?
smth like

val customersSet = customers.collectToSet { it.phoneNumber }

which will make a set of customers with non-repeating phone numbers

[marstran]

You can do customers.distinctBy { it.phoneNumber }, but it will return a List. You can do toSet after to make it a set.

[kitttn]

exactly what i needed, thank you a lot 🙂

[marstran]

No problem 🙂

[Reinis]

Not sure if that is correct way

[Reinis]

you want Set<Customer> in the end?

[Reinis]

Nvm, while Customer has proper equals checks then it should be fine